6.7 Typical Characteristics: VS = 6 V

at TA ≅ 25°C, VS+ = +4 V, VS– = –2 V, closed-loop gain (G) = 7 V/V, VCM = midsupply, RF = 301 Ω, RL = 100 Ω to midsupply,

small-signal VO = 100 mVPP, and large-signal VO = 1 VPP (unless otherwise noted)

Frequency (Hz)

-15

-12

-9

-6

-3

0

3

10M

100M

1G

D056

G = 7 V/V, RF = 301 :

G = 10 V/V, RF = 301 :

G = 20 V/V, RF = 301 :

G = 100 V/V, RF = 3.01 k:

VO = 100 mVPP

Figure 6-37. Noninverting Small-Signal Frequency Response

Frequency (Hz)

-15

-12

-9

-6

-3

0

3

10M

100M

1G

D057

G = 7 V/V, RF = 301 :

G = 10 V/V, RF = 301 :

G = 20 V/V, RF = 301 :

VO = 100 mVPP

Figure 6-38. Inverting Small-Signal Frequency Response

Frequency (Hz)

-15

-12

-9

-6

-3

0

3

10M

100M

1G

D060

G = 7 V/V, RF = 301 :

G = 10 V/V, RF = 301 :

G = 20 V/V, RF = 301 :

VO = 1 VPP

Figure 6-39. Noninverting Large-Signal Frequency Response

Frequency (Hz)

-15

-12

-9

-6

-3

0

3

10M

100M

1G

D061

G = 7 V/V, RF = 301 :

G = 10 V/V, RF = 301 :

G = 20 V/V, RF = 301 :

VO = 1 VPP

Figure 6-40. Inverting Large-Signal Frequency Response

Frequency (Hz)

-100

-90

-80

-70

-60

-50

-40

-30

1M

10M

100M

D062

HD2, RL = 100 :

HD3, RL = 100 :

HD2, RL = 1 k:

HD3, RL = 1 k:

VO = 1 VPP

Figure 6-41. Harmonic Distortion vs Frequency Over RL

Frequency (Hz)

-90

-85

-80

-75

-70

-65

-60

-55

-50

-45

-40

-35

1M

10M

100M

D065

HD2, G = 7 V/V

HD3, G = 7 V/V

HD2, G = 10 V/V

HD3, G = 10 V/V

VO = 1 VPP

Figure 6-42. Harmonic Distortion vs Frequency Over Gain

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OPA818

SBOS940B – MAY 2019 – REVISED DECEMBER 2025

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